At the junction of the crosscut and the levels a winze is sunk 55 feet 
deep. The reef is stated to be 1 ft. 6 in. thick. As the dip of the reef 
is eastward and the pitch southward and the present tunnel is the deepest 
that can be driven to the reef, a shaft will be necessary to further develop 
the mine, and it should be sunk on the north side of the gully and to the 
south of the tunnel mouth, so as to be available for some time to come. 
Centre country was not observed, but there is much scope for further 
prospecting. The country rock is of a favorable nature and there may 
be saddle reefs that would not be disclosed at the surface. 
[Report sent in 26 . 8 . 07 •] 
THE TOORA TIN DEPOSITS. 
By A. M. Howiti. 
The area applied for as a mining lease by Messrs. Greville and 
Griffiths is south-west of the Franklin River Hydraulic Sluicing Company 
(late Great Southern Tin Mines), and is partly on a mining reserve and 
partly on allotment 17A, parish of Toora. A sketch locality plan is 
.attached. 
To indicate the extent of ground applied for, it is necessary to 
mention the approximate positions of the pegs. 
South-east corner peg.—Near the junction of Doctor's Creek and Tin 
Mine Creek mining reserve. 
South-west corner peg.-—In southern portion of, and about half-way 
across allotment 17A. 
North-east corner peg.—Near the intersection of Doctor’s Creek and 
the southern boundary of J. Nichol’s allotment 19B and in the mining 
reserve. 
North-west corner peg.—In northern portion of and about half-way 
across allotment 17 a. 
I am informed that the area approximates 100 acres, and it is intended 
to keep as near as possible to the present pegs. 
The Cainozoic (Eocene) deposits of drifts, clays, and gravels have a 
south-westerly course from the Franklin River Hvdraulic mine and are well 
defined across Greville and Griffith’s area, appearing to occupy a deep 
eroded channel through Jurassic sandstone and mudstone beds, which were 
dipping to the north where seen on the southern margin of the Cainozoic 
deposits. On Doctor’s Creek the drifts, clays, and gravels can be seen 
right down to the creek, which is 303 feet above sea-level. 
Proceeding west up a somewhat steep spur past the 62-ft. shaft and 
on to the top of the spur I took another aneroid reading and registered 
440 feet above sea-level, therefore making a thickness of at least 147 feet 
of drifts, clays, and gravels. 
These deposits then trend on in a south-westerly course across a deep 
scrubby gully and on through Johnson’s allotment 17A to the western end 
of the area pegged, where a land-slip has occurred and shows the drifts 
at a slightly lower elevation just before the slope down to Tin Mine Creek 
commences. 
Already Greville’s (party have sunk several shafts along the course of 
the deposits on that portion of their area which is in the mining reserve. 
The following is a brief reference to each, going south-west from 
Doctor’s Creek. 
